package com.atguigu.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {
    /**
     * 正常访问，肯定ok
     * @param id
     * @return
     */
    public String paymentInfo_OK(Integer id){
        return "线程池： "+Thread.currentThread().getName()+" paymentInfo_OK,id:  "+id+"\t"+"哈哈😄";
    }


    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "5000")
    })
    public String paymentInfo_TimeOut(Integer id){
        int timeNumber = 3000;
//        int age = 10/0;
        try {
            TimeUnit.MILLISECONDS.sleep(timeNumber);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池： "+Thread.currentThread().getName()+" paymentInfo_TimeOut,id:  "+id+"\t"+"哈哈😄  耗时(秒)"+timeNumber;
    }

    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池： "+Thread.currentThread().getName()+" 8001系统繁忙或运行报错，请稍后再试,id:  "+id+"\t"+"(┬＿┬)  耗时(秒)";
    }

    //========服务熔断

    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"), // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60") //失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {
        if (id <0 ){
            throw new RuntimeException("******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"\t" + "调用成功,流水号: "+serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id) {
        return "id 不能负数,请稍后再试,o(╥﹏╥)o   id: "+id;
    }
}
